The stomach contains parietal cells that produce intrinsic factor, which helps absorb vitamin B12. The muscularis layer of the stomach consists of three layers of smooth muscle that help mix and move food through the digestive tract. Enteroendocrine cells in the stomach produce hormones in response to food in the digestive system.

1. Which of the following statements is true of the stomach? Mucous cells produce HCl The
muscularis layer consists of 5 layers of muscle Enteroendocrine cells produce pepsin Parietal
cells produce intrinsic factor